Police in Victoria, Texas, placed an officer on administrative duty pending an investigation of a shocking incident with a 76-year-old man over an inspection sticker.

The Victoria Advocate newspaper reported that Vasquez told Robinson the vehicle was exempt from requiring an inspection sticker because it still had dealer tags. Police chief Jeffrey Craig later confirmed to the paper that the vehicle was, in fact, exempt.

After trying to explain the law the to the cop, Officer Robinson twists Vasquez’s arm behind his back, eventually landing him on the ground out of view of the dashcam (footage below). Seconds later, Officer Robinson is seen standing in front of the patrol car holding a tazer gun, which he used on Vasquez at least twice, police told the Victoria Advocate.

Another older man can be seen exiting the auto mart where the stop took place and yelled at Robinson “What in the hell are you doing? This gentleman is 76 years old.” He told the Victoria Advocate, “The cop told me to stand back, but I didn’t shut up. I told him he was a godd**m Nazi Stormtrooper.”

Robinson graduated from the police academy two years ago and has been placed on administrative leave pending an “investigation.” Watch the dashcam video below: